Fuse for ordnance-shells.



I. T. VON RISQH. I FUSE FOR ORDNANGE SHELLS.

APPLIGATION FILED AUGJZS, 1910.

Patented Feb. 21, 1911.

3-'SHBETS-SHEBT l.

I. T. VON RISGH. FUSE 4BOR ORDNANCE SHBLLS.

1 'APPLICATION FILED AUG. 23, 1910. 984,607'.` e

Patented Feb.2 1`,1911.

a :SHEETS-SHEET 2. l

Mweffer y I i 4 et@ N I. T. VON RISGH. FUSE FOR ORDNANGB SHBLLS. 4AIPLIUA'ALIQN FIL1 ID AUG. 23, 1910.

L 1|. 9 1 1) 2\ w F d m m. P..

3. T E E E a n B mL E E H S 3 IUNiTED STAWENT OFFICE,

I'snJoRv T HEQDOR voN Risen, oF VIENNA, AUSTRIA-HUNGARY- FUSE Non ORDNANCESHELIS'. l

"To'a'll whom tmaly concern;

15e. it known that 1,. IS vion ATiinonoiii'oN` 'l{'i'st "ii' a Siibjeet ofthe Eniperoifot' vii'stria-A Hnngari residing at Viennafin A ii'stria a IInngary, have invented a 'eei'tain 'nen' and iisefi'il Iinpi'oenielit in Fuse for Qi'diianee- Y.' lvhein'ei'ition; is diifeieiitiated Ytroni'preti-li mieliy devised fuses depending.` lfor their vacltion yn n the rotation ofthe,v prpjeetile, by 'Lai et; iisedin eoinbination ii'ithja. brake-l c leijiee and .s'pjecial, tiining, and ac tiiating ineehaniei'n, :f wliereby exceptional preision 'and vsin'oo'thn 'feonseqaentedn `tion of' dispersal,

fiile;

An' enibodf'nen f .Q Cton are obtained, with [llo the front side the eapglthtliere is'xed piii :T29 Vbea.spring 2S, and inthisl po E thespndle of'iijliieli'afre'fixed a' Gener '2 Specification of Letters Patent. Iaten'td Fel),v 21, 191l1z l I rLapp'iieatm 'ined viiu'g'usf23,1911). seria1 '1-rn 5"7a@5t i1.f'A

The base' 1 of tli'eease 'containing the f n'se ting against a diek tlieflatter being connected to the base l by pine '(xand screws y7. T' 8"- ll t l' t'l ll nne iinha ain .Y sepaia ei ioni eati other by the disk 3 forni 'the .Walle` ot' the rase betnieen the basel and tlie'eap or shellfi'ioe 10. the latter4 being 'sei'e\'\`ed to the disk ,The eapflO uontain'A the brakefblock Vil, shown .in 'l" igs'. 5 and 5a. This brake-bloeit liaaa'i'eeess containing' a beveled i-loller H 'rotata'b1eoi i a'. spindle- 115. T he roller .115*l pro'trntlee `from the under' or rear surface of tlie bloel'', 'iv'itliinfashort distance ofa plate 'iiked'to thedisk The block has perforate-d 'lugs 16, n'i'eansof which 1 slidably 'mounted konV a 'on ball 4bearings 13 yand l-l, rotation otlthe Vblo'fck relative to the spindle being' prevented by a pi 1`i 17 which is fixed tov a Vcollaron -the, Spindle land enters a slot in one ofthekl "A coiled spring 1S interposed' betnjee Spindle 1'5 Working the' plate 1Q..

is fitted a pinion" 1 9 connected by a trainlof The pivot 27l ofaisiiigle-arnied leif'eif'ZG iolonda'- behind the hole 24, coverin'ga little lese than half thereof, S'o that b i'frotat'iiig the@ iif'ot.

isE

gear vWheels 20x 21,` 9210 Va toothed ringI 2 3 rotatably engaged with. a flange Q-L of a. ro- -tatable cylinder betweenthe disks 3 and :2 7 the prolongationv gli 'can be preeed against' the inner edge ot tlie'i'in b tnt- 1,

the lei'eiQGis norin'ally'-thrust aga, ie

thev prolongation. 27d, of the, 'piro is notv i vCyliiid er T 'llliisl'ring-Carries a i'iin 105 adapted 'to 'engage' afnotelied wl'ieeL .o

t am ivlieelB-lwaiid a pinion The latter n'i'eslies 'nl ar ira'ek fixed toiaftiine 3'1"'` whirli' has a ghole trai'ered 'b v the llie etop-njheel. 3l: slidablyei 0f t' where the latter ihas 37, enabling' the 4stop wheelto befrotated.'

by the pin 32 when it is opposite this .recess. The ring' 3l has a'raclial channel contamn'lg a spindle .3S wlth a crank 39 fixed to. its `innerend and. a. cam 40- iixed to its` -diate from central bores and contain the .spokes of Wheels 44 and 45 respectively cap 53.

(Figs. 2 and 3). These Wheels are grooved at their circumferences andv are fixedto an axially slidable spindle 46, the front end of which has bearing in the disk 5. The .groove in 'the Wheel 44' is engaged by thev pin of the' crank '39, and the .groovelin the, Wheel is' engaged by the'pinof a crank 39*iL Afixed to a spindle 38, which is mounted in the ring 30I and carries' a fcam v40% A screw 47 is vscrewed to the rear end of the spindle 46,

and a socketlS is slidable on 'a smoothpo'rtion ofthe' shank fof th1s screw,l said socket containing afring. of balls 49 engaging' an annlargroove 50'in the percussion pin 51.

A'spring 52coiled on the `percussion pin tends to thrust'same Itoward 'the percussion When the' cam 40' rotates Vthe `spindle 38 thecrank 39 lifts the vrhee1s'44 and' 45, and the wheel 45 rotatesthe cam 40?*v into posi- 'tion to abut against a bell crank 54, 'which pivoted at F4 is a' .flange 55' ofthe ring 9,

' andV is held in position by a spring. By this means the spindle 3 8*I is rotated, andthe cam p 40* then s'lidesonthe flange `vThfe` hami'ner mechanism comprises a .socketl or,l anvil- 56 fitted into a cap 61 i screwed' to' the base '1,- and a tubular piece 57 surrounding (the 'spring 52 4and `supported againstl the base ljby a flange 59 of a' copper ring 57", which has a flange 58 resting upon the socket56. The pin 51 has a collarthrust 'soi by the spring 52 against a flange 60 ofthe tubular piece 57." c

:Thel in 29. has at' its rear end aV head 29 tapex'jey for engagement with a ,radially -slida'ble"pi1r62, Whiclr has a projectionGS prot'l'.udingI into a groove 64-in lthel ring'S. The latter can be rotated by means of a key,

and by rotat-inggit intoa ,certain position the projection 63iscai 1sed to enteran inwardly n directed prolongation', 65 of the 'groov'e'6-4,

whereby the pin 62 is thrust inwardl to engage the head )29 and prevent movement'of the pin 29v 'p into the position indicated by dottedli11es'fin`Fig.'-l.l This adjustment is kmade -avhen thefusev is act v`sblely by inijTllc 'vane 15` isffixed tozthe spindle-15 by aweb 68 and has'two triangular sides meet- 65 .ing at an edge 66, whichlies in a plane lon-,-

' After grituclinalbv bisecting-the.shell, and makes with the axis of the shell an angle ivhich is A openin ythel direct-ion of the trajectory. The sides curve outward from said edge 66to the rearcorners G7 'and 6Ta remote from theaxi's, so. that .duringthevv flight Vot' the projectile air is compressed at the sides of the vane.

This compression assistsl in preventing rotation of the vane.

The toothed gear is so proportioned thatrevolutions of the spindle 15 produce one revolution of lthe/toothed ring' 23 and ring 30, `.vhereby the ring `and lcam 404 are moved throi-.jgh a" certain angle *by means of the pin 32and pinion 35. y

The action of the 'mechanism is as Vfollowsr-lVhen the shell is fired from the gun them-1129 (if not locked lby...th evpin 62),:15-

sumes inertia the' position indicated in.

.,F1g. 1 by dotted lines, and releases lever 26, so that the lat-ter is rotated by spring l 28, wherebybne edge of the.y part 27" is pressedv against` the Atoothed ring 423, and .couples the driving `mechanism with the timing Y and actuating mechanism. 'A Al/Vhile the projectile has acceleration the roller 11 is thrust against the plate 12, bythe inert-ia of the brake 11, and revolves on said plate,

but prevents rotation of the brake. W hen the acceleration ceases the brake 11 is thrust forward by spring 1S. I

`By'rotation of the gears 20, 21, 22 about the pinion19 the gear-train is driven and imparts rotation to the rin 30 andcafn 40.

YAt' each revolutonthe pui` 32 rotates the stop-wheel 34, pinion 35 and ring 3l, so that the cam tOis advanced along n la- Vcert-ain number of revolutions, depending on the adjustment of the time-rings, the cam`40 is rotated by the abutment 42, and causes the crank 39 to move the wheel 44 into the position shown in Fig. 4","'together with thewheel 45,'whereby the caxn the flange41..

40IL is rotated into the position shown in Fig. v

il". At the next revolution the cani 40l slides on to the abutment 54, and the lcra1`1l1rf39" moves the wheel 45 and spindle 46 so that 1 the screiv47 pulls the socket 48 clear ofthe balls 49 (Fig. 4*), thus releasing the 'reussion pin 5l. 'The spring'52 forces t e pin and part 57 intov the part` 56,:a-nd vexplodes the .percussion cap.

Fig. .6 shows the positioiiuxofi'cam 40 when i the time ring 9 is. adjusted' for the cam to l shell, the cam 40 being then in the y:Itu'isit-ion act after 99', 199, l299, etc., revolutions of the in which it is s'h'ownin Fig.,4.

- Vhat I claim as ,my invention'and desire i to vsecure byI Letters'4 Patent `ofthe United Sta tes lis:-`f. i v .l .v

,1. An ordnance Ishell "fuse, comprising, 1n

device-for restraining :said hammer from action,l 'means-for disabling said .restraining devic,a rotatable spindlecoaxinlwith .the

combination with an'. automatic hammer, l1

leo f shell, mechanism actuatable by said spindle for actuating said disabling means, a. vane fixed to said spindle and exposed to the Wind of the shell, a brake device slidable but-not rotatable Von said spindle, saidbrake device comprlsmg a roller, an abutment. surface'` for said roller at the rear of the vbrakey device and transverse to the spindle, and a spring which actsy on said brake and nor-v mally holds-said roller out of 'Contact withy said abutment surface but is overcome by theinertia. of the slidable brake While-the shellis gaining speed7 said vane and brake coacting to prevent rotation of the spindle Withthe shell. i

2. An ordnance shell fuse comprising, in .combination-With an automatic; hammer, a device for restraining said hammer from action, means 'for disabling said restraining device, .a rotatable spindle coaxial with the shell,'mechani's1n actuatable by said spindle for"aetuating said disabling means, a vane fixed to sald spindlcand exposed tothe wlnd,

' of the shell, said vane having, symmetrical conc-ave lateral surfaces cpnverging toward an .edge which makes an an le with the; spindle axis open in the direction of flight,`

a brake device slidable but not rotatable on said spindle, said brake .device'c'oln rising a roller, an abutment surface fori sai roller at the rear of the .brake-device an'dtransverse to the spindle, and a spring. `Which acts on' said brake and normallyholds said*` rollergout of Contact Withfsaidabutment surface butsis overcome by the inertia of the s'lidable brake while the shell is gaining speed,l said vane and brake coacting to prevent rotation of the spindle with the shell.'A f

3. An' ordnance shell fusecomprising, in combination with anautomatic hammer,.a device for restraining said hammerv fromv action, means for disabling f said restraining device, a rotatable spindle coaxial with the sliellymechanism actuat-able by saidspindle foi-[actuating said disabling mea-ns,` a vane fixed Ato said spindle and exposed to the wind of the shell, said vane Ahaving symmetrical concave lateral surfaces converging toward fan'edge' which" makes an angle with the spindle` ajvisopen in the-direction of flight, said` lateral surfaces diverging from each o' thefr-towardy `two, corners at. the rear of the vane, remote fromthe spindle, a brake deviceslidablebut not rotatable on said spin# dl'et,":said bra-ke ldevice comprising a roller an abut-ment surface vfor-,said .roller atv ithe ear of "the brakef-device andt-ransverse to tliespindle, anda spring which act-sonsaid brake andvnormall-y holds saidrollerout of contact Wit-h* said abutment s urface butis overcome by the inertia of thes'lidable brake I ivhile'the shell islgainin'g. speedfesaid vane:- and brake coacting to prevent `rot-ation' or' the Spindle with the shell'.

4. An ordnance shell fuse comprising, in

' vicecomprising a rolle1; .lan?a device and transverse Ato :the pindl Yspring which acts on,said;brake' with the shell. 2

combination with anv automaticfhaiinneigfa,v

device for restraining said ham11ier"fro1'n,af. tion, means for disabling saidfrestramlng device, a rrotatable spindleco l the1 action, means for disabliu l device, a rotatable spindle ,coa shell, rcgulatable time mechanism actua by said spindle for actuating .sai lffdabling means, said. regulatablei timesmjechanisni comprising movable cams and independently movable time rings having; i butnent instable in the pathso sai'deams; fixed to said spindleland.-exposed; win'd of a shell, la brakesdevie' notrotatable on said spiudl bitment i face for said rollerat Vtheir-ciano, athefb `nd fa mally holds said roller out of sont, said abutment surface but isiove'rCo'me v'. he 105 is gaining speed, said.' vanelA Y acting` tos'preven't rotation `off.- the:spinc 'e VG. An ordnance shell fuse-.coinln'ising n combination with an automatic hammena device` for, restrainingdsaidha-miner from action, means for disablingf'said'restraining deviceka rotatable spindlezcoatvialfavithfthe shell; regl'llatable time-mechanism ictu'atable lby said spindle for actuating said disabling means.v said regulatable time mechanism comprising movable cams and in'depender'itly'f `movable tin-1e rings having abutmentsj'adjustablefgiu the paths of saidwcamsgnia disk f, separating said time-rings?, a"l vanewfixedvto said. spindle land exposed-.to` the Wind -ofthe shell, a brake v device sli'dable ,butanoti-rotaf table on said lspindle, saidgrbirakevdeviceom puisinga: roller, an -abutment'f'surfacegior 'sa id roller; atthe rear- 'offthey brakesdevice a nd "transverse to V` the spindle,: andy-a spring ivi' iclr acts on -said'braike ndlnorgm'all holds sad i roller out ofncontaet; Wit 'i m'entsurta cev ibutis overcome; ab l1 iol ing spced, said vane and brake coacting to prevent rotation of the spindle vrwith the shell.

T. An ordnance sliellV fuse comprising in1 vcombination an automatic hammer having an annularconstriction, a hammerrestraining 'device' comprising a ring of 'balls' and a slidable socketada'pted to'hold said balls in saidfannular constriction, .means for disabling said restraining. device by moving said socket, a rota-table spindle coaxial with the shell, mechanism actuatable by said spindle `foractuating said disabling means,

` 4aiid normal] y holds said i'oller out of contactwith said. abutment surface but is overcome a vane fixed to said spindle and exposed to the wind of the "shell, a brake device slid- 'able `but not rotatable on said spindle, said brakedevice comprising a` roller,.an abut-- ment surface for said roller at the rear of the brake-device and transverse to the spindle, and a spring which acts on saidbrake by' the. inertia of'tlie slidable.' brake while the shell is gaining speed, saidv-ane and brake coactii'ii;l to prevent rotation of the. "spindle ivitli the shell.

S. iin-ordnance.',shell fuse comprising` in combination' an automatic hammer having anfannular constriction, a hammer restraining devicecomprising aring of -balls and "'a slidable socket adaptedl to hold said vballs in said annu-lar constriction, rotatable driving spindle coaxial With-the shell, a vane fixed lto said driving spindlefaiid exposed to the windof tliefsliell, cam-spindles, means whereby said driving spindle rotates saidv cain-spindles about the axis of the driving spin dle, adj ustable cain-actuatiiig abutments in the paths of the cams` means connecting said cam spindlesjto vthe'y slidable socket so vthat by collectivey actuation of the cams the socket is displaced to release the balls,av

brake device slidable but not rotatable on said spindle. said brake device comprising a roller, an Yabutment surface forsaid roller at the rear ofthebralie-device and transdevice for restraining said hammer from act-ion, means for disabling said restraining device. a rotatable spindle coaxial with the shell, regulatable time mechanism `actuatable` f by said spindle for actuating said disablingnieans, said time mechanism comprising.a Geneva' stop-wheel -releasable and .actua-table at. intervals the spindle, a'van'e'fixed to said spindle and exposed tothe Wind ofztlie Y table on'said spindle, said brake device coini prising a roller, an abutment surface for said roller at the nrear of the jbrake-device and transverse to the spindle, andA a spring which acts on said brake and normally holds said roller-out Yot' cont-act With'- said abutnient'. surface but is overcome by the inertia of the slidable brake While the shellis'gaining speed, said-vaiie and-brake coacting toprevent rotationof thel spindle With the shell. f

l0. An ordnance shell fuse comprising, in combination with an automat-ic hammer, av device for rest-raining said" hammer from act-ion, means for disabling said restraining device, a rotatable spindle coaxial with the shell, mechanism actuatable by said spindle to' actuating said disabling means, means for locking the mechanism actuatable by the spindlef., a vane fixed to said spindle and exi posed to the -vvind of the shell, a brake device slid-able Vbut not vrotatable on said spindle,

said brake device comprising al roller,` an

labutment surface for said roller at the rear of t-lie'lii'ake-device and transverse to the spindle, and vva `spring which acts on said brake and normally holds said roller out of and brake coacting to prevent rotation of the spindleivith the" shell. i

11. An ordnance shell .fuse comprising',- in

combination with an automatic hammer, a

device for restraining said hammer from action, means for disabling said restraining.

device, a rotatable spindle coaxial with the shell, mechanism actuatable by said'spindle for actuating said disablingineans, an automatic clutch for renderingr operativeV saidl lmechanism actuatable bythe spindle, a device which normally restrainss'aid clutch.

but is renderedincperative by inertia when A the shell is tired, a vane fixed to said spindle and exposed to the wind of vthe shell, a,

the rear' of the brake-device and transverse i to theV spindle, and a spring which .acts on said brake =andnornial`ly holds said roller out ofrcontactwith said abutment'surface but -is overcome b v the inertia 0f the slidable brake AWhile the shellis gaining speed. said vane and 'brake coacting to :prevent rotation` ofthe spindle with the shell.

llO

-- 12.* An ordnance shell fuse comprising, in I combination with an automat/ic' hammer.A

said hammer comprising .a spring-pressed percussionpin engaged -with a movable percussion member, :a device for restraining said hammer from., action, means for disuvtufitnblc by said Spindle 'formulating Said disabling' ummm a van@ ixefl to Said spmdle 'und exposed lo the Wind' of the Shell. abiakeY device slidable but not rotatable on said spi11dle,suid brake device Comprising a' roller, uiinbutment surface for said roller at the reni' of the brake-device and transverse to the spindle, and a spring which acts on sziil brake and normally holds said roller out ot 1d contaet with said abutment surface but is l l i l overcome'by the inertia-oi the slidable bmke while the Shell is gaining speed, Said Vano A:und brake cozxoting to prevent rotation of the Spindle Wit-h tho shell.

In 'Witness whereof I have' Signed this specification in the presence of two Witmesses.'

ISIDORv THEODOR VON RISCHA, lvitiiesses': l

J ULIL'S FLEISOHER,` CHARLES LsoH. 

